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2012 , Vol. 70 >Issue 07: 917 - 920

DOI: https://doi.org/10.6023/A1110104

研究论文

含水溶液中香豆素类探针对碘离子的荧光增强识别

  • 马文辉 ,
  • 夏威 ,
  • 徐群 ,
  • 韩宏彦 ,
  • 宋波 ,
  • 孙丽微 ,
  • 梁春花
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  • a 齐齐哈尔大学材料科学与工程学院 齐齐哈尔 161006;
    b 齐齐哈尔大学精细化工黑龙江省普通高校重点实验室 齐齐哈尔 161006

收稿日期: 2011-10-10

  修回日期: 2011-12-31

  网络出版日期: 2012-02-21

基金资助

黑龙江省普通高等学校青年学术骨干支持计划(No. 1152G054)和齐齐哈尔市科学技术计划(No. GYGG2010-05-1)资助项目.

收起

Fluorescence-enhancement Sensor for I- Based on Coumarin in Aqueous Solution

  • Ma Wenhui ,
  • Xia Wei ,
  • Xu Qun ,
  • Han Hongyan ,
  • Song Bo ,
  • Sun Liwei ,
  • Liang Chunhua
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  • a School of Materials Science and Engineering, Qiqihar University, Qiqihar 161006;
    b Key Laboratory of Fine Chemicals Qiqihar University, College of Heilongjiang Province, Qiqihar 161006

Received date: 2011-10-10

  Revised date: 2011-12-31

  Online published: 2012-02-21

Supported by

Project supported by the Young Academic Backbone Project of Heilongjiang Province College (No. 1152G054) and the Science and Technology Plan Project of Qiqihar City (No. GYGG2010-05-1).

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摘要

设计合成了新型含硫代半卡巴肼结构的香豆素类I- 荧光分子探针CI, 其结构用1H NMR, 13C NMR, GC/MS和元素分析进行了表征, 并考察了其光谱性能. 结果表明CI 在中性缓冲溶液中, 在常见阴离子(F-, Cl-, Br-, I-, AcO-,HSO4- , H2PO4-)中能够专一性地识别I-. 滴加I-后引起吸收光谱蓝移80 nm, 荧光光谱蓝移6 nm, 荧光增强5.9 倍, 溶液荧光由黄绿色变为亮蓝色. 其它阴离子的存在并未干扰CI 对I-的检测.

关键词： 荧光分子探针; I-; 香豆素; 硫代半卡巴肼; 荧光增强

本文引用格式

马文辉 , 夏威 , 徐群 , 韩宏彦 , 宋波 , 孙丽微 , 梁春花 . 含水溶液中香豆素类探针对碘离子的荧光增强识别[J]. 化学学报, 2012 , 70(07) : 917 -920 . DOI: 10.6023/A1110104

Abstract

A novel fluorescent molecular sensor CI based on coumarin thiosemicarbazide for I- was designed and synthesized. The structure of CI was identified by 1H NMR, 13C NMR, GC/MS and elemental analysis, and the spectral properties of CI was investigated. In neutral buffer solution, CI exhibited specific recognition for I- among anions (F-, Cl-, Br-, I-, AcO-, HSO4-, H2PO4- ). The addition of I- led to 80 nm blue-shift in absorbance maximum, a 6 nm blue-shift in fluorescence maximum, a 5.9-fold fluorescence enhancement and an obvious fluorescence change from yellowish green to brilliant blue. Other anions had no interference for CI to detect I-.

Key words： fluorescent molecular sensor; I-; coumarin; thiosemicarbazide; fluorescence enhancement

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